The Joan Gordon Family Films (approximately 1930-1939) consist of two color 16mm films from the 1930s which feature Benjamin "Bugsy" Siegel and his daughters in a swimming pool in Los Angeles, California and other locations in Southern California. Also included are two reproductions of black-and-white photographs featuring Esther, Milicent, and Barbara Siegel along with Joan Gordon, her sister and mother. Joan Gordon grew up in Los Angeles, California and her family was neighbors with Benjamin and Esther Siegel and their daughters Millicent and Barbara.

The Hughes Aircraft Company Weapons System Publications (approximately 1965-2011) contain brochures, booklets, photographs, and illustrations of the AWG-9/Phoenix Air Superiority Weapon Control System developed by Hughes Aircraft Company Aerospace Systems Division based in California. The collection contains photographs of various aircraft, as well as a Supersonic Naval Ordnance Research Track (SNORT) test at the Naval Ordnance Test Station near China Lake, California.

The records of the Nevada Association of Psychiatric Physicians (NAPP) document the professional association's membership, activities, and advocacy from 1984 to 2000. The records indicate how NAPP organized the professional psychiatric community in Southern Nevada, held meetings on various public health initiatives, networked with other professional organizations like the American Medical Association and the American Psychological Association, and published articles and newsletters on a variety of psychiatric topics.

The David Fluke Papers on Las Vegas Entertainers consists of the notebooks of David Fluke, a Las Vegas, Nevada resident whose hobby was documenting entertainers and shows on the Las Vegas Strip from 1946 to 1981. His notebooks feature handwritten lists of entertainers' show dates and lounge acts, and include dates for the Las Vegas debuts of numerous performers. The collection also contains celebrity trivia and biographical sketches of various Las Vegas entertainers.